Software Archive for Texas Instruments Calculators

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Software Archive for Texas Instruments Calculators

Post by Seldon2k » Fri Jul 07, 2017 10:47 pm

After posting to 'Early 70's Calculators' I suddenly had the idea to use this area to try and
generate an archive of programs for the Texas Instruments Programmable Calculator family.

I will post some for my TI-51-III, TI-58 and TI-59's just as soon as I find them :lol:
I hope there are others reading this who may also be able to contribute.

Code: Select all

Factorials for the TI-58/59 from the Wiki
Op-code        Comment
LBL A          You'll call the program with the A key
STO 01         stores the value in register 1
1              starts with 1
LBL B          label for the loop
*              multiply
RCL 01         by n
DSZ 1 B        decrements n and back to B until n=0
=              end of loop, the machine has calculated 1*n*(n-1)*...2*1=n!
INV SBR        end of procedure
Terry (Seldon2k)

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Re: Software Archive for Texas Instruments Calculators

Post by flaxcottage » Mon Jul 10, 2017 8:53 pm

What an excellent idea! :D

I have recently acquired a TI58c and a TI59 complete with a PC100Cprinter cradle. I also own a SR56 which uses very similar codes; programs for the SR56 work quite well on the TI58/59 machines.

I used the SR56 in the late 70s for a lot of statistical work in my biology teaching. I even had it running a model population in 100 program steps. These machines helped me to learn machine code programming as their simple instruction set was very low level.

I also 'went modern' and acquired a TI66 that is almost program compatible with the TI58/59 series albeit very much slower but its batteries last for years.
- John

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